"Zoom in on any part of the screen just by clicking the mouose once."
The name of the program, Mousezoom, tells you everything. It lets you do all types of zooms like a powerful magnifying glass, on anywhere of the screen. You can zoom in from 2x to 50x without losing the original image quality.
In Mousezoom you just have to select the specific area you want to zoom in on by using the mouse, and with a simple click you will have that zoom. You can then zoom in and get the detail you want which would be impossible in its original size.
Thus you can see all the details from any part of the screen.